Home / 1,230,492.80-1,845,393.60-389,302.40

Finding the Fourth Proportional to 1,230,492.80, 1,845,393.60 and 389,302.40

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Solution

The fourth proportional to 1,230,492.80, 1,845,393.60 and 389,302.40 is: 583,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,492.80 : 1,845,393.60 = 389,302.40 : x
  2. Step 2: Convert to fraction form
    1,230,492.80/1,845,393.60 = 389,302.40/x
  3. Step 3: Cross multiply
    1,230,492.80x = 1,845,393.60 × 389,302.40
  4. Step 4: Simplify right side
    1,230,492.80x = 718,416,157,424.64
  5. Step 5: Solve for x
    x = 718,416,157,424.64/1,230,492.80
  6. Step 6: Final answer
    x = 583,844.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.